package electricalequipment;

/**
 * @author: zh
 * @date: 2021/12/15 20:52
 * @version: 1.0
 */
public abstract class Zh0202ElectricalEquipment {
    public abstract void open();
    public abstract void close();
    public void add(Zh0202ElectricalEquipment equipment){

    }
    public void remove(Zh0202ElectricalEquipment equipment){

    }
}
